Stove-pipe thimble



(No Model.) i A. STAUB.

STOVB PIPE THIMBLE.

` No. 885,212. PatentedJune z8, 1888.

/LW Md Nrrun STATES ALEXANDER STAUB, OF FORT IVAYNE, INDIANA.

STOVE-PIPE THllVl BLE.

SPBCIPICATLEON forming part of Letters Patent No. 385,212, dated June 26, 1888.

(No model.)

To @ZZ whom, it may concern:

Be it known that l', ALEXANDER STAUB, of the city of Fort Vayne, in the county of Allen, in the State of Indiana, have invented neW and useful improvements in stove pipe thimbles to be used as such, or as ventilators or as registers interchangeably, of which the following is a full and exact description.

The object of my invention is to provide a ventilated stove-pipe thimblc capable of being easily adjusted to the thickness of the tloor or partition in which it may be placed and readily convertible into a ventilator or into a register, as occasion may require. p

To this end my invention consists in the construction 'and combination of devices hereinafter described and claimed.

In the annexed drawings, illustrating the invention, Figurerl is an end view of" a ventilated stove-pipe thiuible constructed according to inyinvention. Fig. 2 is an elevation of the same. Fig. 3 is a longitudinal section in the linea .rofFig l. Fig. tis aplan view of a register which may be placed in one end of the thimble.

As usual in adjustable devices of this class, the thiinble is composed of two metallic cylinders, A and B, each of which is fastened to a separate annular flanged plate, C, the cylinders A and B being of such relative diameter that one Will telescope within the other. The outer cylinder, A, is formed with transverse corrugations a a, as shown. tions a a strengthen the cylinder and serve as a ratchet for engaging automatic springcatches b, attached tothe interiorof the inner cylinder, B, which is provided with slots b', through which the hook ends c of the catches b project, as shown. The cylinders A and B are thus held securely together in any position to which they may be adjusted. Any desired number of catches b c may be employed, and they are preferably pivoted in the inner cylinder, B, in such a manner that they can be lifted out of the slots b and turned aside, so as to rest against the interior of the cylinder B for the purpose of permitting the cylinders to be moved freely on each other in either direction. It is obvious that instead of the corrugations and spring-catches any other suitable fastening can be employed.

The annular flanged plates G C are each made with an inner rabbeted edge, d, for the purpose of providing a seat for any plate, such as D, E, or G, that may be fitted to it. In the rabbeted portion ot' each annular plate C are formed notches or recesses e, (shown by dotted lines in Fig. 1,) for the purpose of permitting the passage ot' lugsff, attached to such other plate, as D, whereby the latter can be secured in place. The lugsff are located on the under side of the annular' perforated plate l) near its outer periphery, so as to pass through the recesses c e and engage the under surface of the flanged plate C when the plate D is turned a little in its seat, the lugs ff thus serving to hold the plates C and D together. The inside periphery of the annular perforated plate D is ofthe proper diameter to fit a stovepipe passed through said plate. This annular plate D is also constructed with a rabbeted inner edge, g, having one or more notches or recesses, lr, formed therein for the same purpose as in the annular fianged plate C. I-n stead of passing a stovepipe through the central opening ot' the annular plate D, a perforated cap or center plate, E, may be seated in .the rabbeted inner edge g of the said annular plate. This centralplatc, E, isprovided on its under side with lugs or catches t z, to secure it in place in the samemanner that the plate D is fastened.

On the inner side of each plate D, at or near its inner edge, is an annular flange or rim, k, for attachment of one of the inner metallic cylinders, F F', which are of such diameter that one will receive and move on the other, thus forming an adj ustable double thimble.

Instead of the separate plates D and E, it is obvious that a single perforated Ventilatingplate without central pipe-hole may be seated in the rabbcted inueredge of the annular flanged plate C, though I prefer the construction herein described, as being more convenient and affording a greater range of use.

A register-plate, G, of anysuitable construction, may be seated, if of large size, in the inner rabbeted edge d of the annular' plate C, or, if of smaller size, in the inner rabbeted edgeg of the annular plate D, as preferred.

It will be seen that by a simple and readv adjustment or interchange of parts the thintiA ble and its described accoinpaniments can be conveniently employed for several useful pur tioA IOO

' with Ventilating plates and registers.

poses. By employing the adjustable cylinders A B and ilanges C C alone a plain stove-pipe thirnble is provided. The addition of the annular perforated plates D D affords an adjustableventilated stove'pipethimble. Byattaching the inner cylinders, F F, a doublebodied adjustable ventilated stove-pipe thimble is provided. The perforated plate E affords a ventilator when the stove-pipe is not in use; or, if desired, the plates D and E may be re` placed by a register, G, as above described.

am aware that an adjustable stove-pipe thimble is not new, and that it is old to provide such thimbles with inner cylinders and These, therefore, I do not broadly claim; but

That I claim as my 'invention is In a stove-pipe thimble, the combination of the adjustable cylinders A B, the annular flanged plates C O, secured to said cylin- 2o ders and provided with inner rabheted edges, d, the annular perforated plates D D, having annular inner rims or flanges, 7c k, and the inner cylinders, F F, attached to said flanges, substantially as described.

ALEXANDER srAUB.

In presence of- H. C. HARTMAN, OLIVER E. FLEMING. 

